koa-lite/examples/upload/index.js

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2013-11-28 04:44:17 +00:00
/**
* Module dependencies.
*/
var logger = require('koa-logger');
var serve = require('koa-static');
var parse = require('co-busboy');
var koa = require('../..');
var fs = require('fs');
var app = koa();
// log requests
app.use(logger());
// custom 404
app.use(function *(next){
yield next;
if (this.body || !this.idempotent) return;
this.redirect('/404.html');
});
// serve files from ./public
app.use(serve(__dirname + '/public'));
// handle uploads
app.use(function *(next){
// ignore non-POSTs
if ('POST' != this.method) return yield next;
// multipart upload
var parser = parse(this);
var part;
while (part = yield parser.part()) {
var stream = fs.createWriteStream('/tmp/' + Math.random());
part.pipe(stream);
console.log('uploading %s -> %s', part.filename, stream.path);
}
this.redirect('/');
});
// listen
app.listen(3000);
console.log('listening on port 3000');